A shortwave trough and a slow moving cold front moving across the region brought rounds of heavy rain to portions of eastern Ohio and southwestern Pennsylvania.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS PBZ wrote it up.
A shortwave trough and a slow moving cold front moving across the region brought rounds of heavy rain to portions of eastern Ohio and southwestern Pennsylvania.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Pittsburgh, PA wrote its last area forecast discussion before the first event at Aug 23, 6:50 AM EST, 47 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PITTSBURGH PA 750 AM EDT FRI AUG 23 2013 .SYNOPSIS... A SLOW MOVING COLD FRONT WILL CROSS THE AREA TODAY. THIS WILL PROVIDE THE RISK FOR SHOWERS AND STORMS. STRONG HIGH PRESSURE WILL MOVE IN FOR THE WEEKEND. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... SHORTWAVE TROUGH WILL MOVE EAST OF THE AREA LATER THIS MORNING... BUT THE COLD FRONT WILL TAKE MOST OF THE DAY TO CLEAR THE SOUTHERN HALF OF THE REGION. WILL KEEP HIGH POPS THIS MORNING AHEAD OF FRONT AND IN THE NEIGHBORHOOD OF THE EXITING WAVE. ATMOSPHERE REMAINS UNSTABLE UNTIL FRONTAL PASSAGE...REQUIRING THE INCLUSION OF THUNDER THROUGHOUT THE DAY. WITH TDS IN THE MID TO UPPER 60S AND PWATS OF 1.5 TO 1.7 INCHES...HEAVY DOWNPOURS ARE POSSIBLE WITH ANY CONVECTION. A MUCH DRIER ATMOSPHERE WILL MOVE IN BEHIND THE FRONT. ACTIVITY WILL DIMINISH IN THE FAR SOUTH DURING THE LATE AFTERNOON AND SKIES WILL CLEAR FROM NORTH TO SOUTH LATE IN THE DAY. && .SHORT TERM /6 PM THIS EVENING THROUGH SUNDAY/... STRONG RIDGE WILL MOVE IN FOR THE WEEKEND. THIS WILL MEAN A DRY WEEKEND WITH COMFORTABLE CONDITIONS FOR THE FIRST HALF. HUMIDITY LEVELS WILL BEGIN TO SLOWLY INCREASE SUNDAY AS THE FLOW SWINGS TO THE SOUTHWEST. && .LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/... THE MODELS AGREE THAT AN UPPER LEVEL RIDGE WILL BUILD OVER THE CENTRAL PLAINS THROUGH THE LONG TERM. DESPITE THE CONSENSUS IN THE OVERALL UPPER LEVEL PATTERN...THERE REMAINS INHERENT DIFFERENCES IN SHORTWAVE TIMING AND PLACEMENT AS THE MODELS SUGGEST SEVERAL WAVES WILL DROP THROUGH THE NORTHWEST FLOW OVER THE GREAT LAKES/OHIO VALLEY. WITH THIS IN MIND...CONTINUED TO CARRY AT LEAST CHANCE POPS THROUGH MUCH OF THE FORECAST PERIOD. DESPITE NORTHWEST FLOW...BOTH TEMPERATURES AND DEWPOINTS SHOULD INCREASE THROUGH MIDWEEK BRINGING A RETURN TO HOT AND HUMID CONDITIONS. FOR NOW...MAINTAINED HIGHS JUST AT OR ABOVE SEASONAL AVERAGES. && .AVIATION /12Z FRIDAY THROUGH TUESDAY/... COLD FRONT IS SLOWLY WORKING SOUTH THROUGH THE REGION. THE MOST INTENSE AREA RAIN IS AFFECTING MGW. IFR CIGS/VIS WILL LINGER THROUGH 14Z FOR MOST AIRPORTS SAVE FOR MGW...WHERE IFR WX COULD LAST UNTIL 15Z. RAPID IMPROVEMENT TO VFR TAKES PLACE FROM N TO S DURING THE MID TO LATE MORNING HOURS AS HIGH PRESSURE BUILDS IN. PREDAWN MVFR OR POSSIBLY IFR FOG COULD DEVELOP AT THE END OF THE TAF PERIOD. FOR NOW...INSERTED REDUCED VIS WHERE CONFIDENCE IS GREATEST. .OUTLOOK.../SATURDAY THROUGH TUESDAY/... NO WIDESPREAD IFR WEATHER IS EXPECTED. && .PBZ WATCHES/WARNINGS/ADVISORIES... MD...NONE. OH...NONE. PA...NONE. WV...NONE. && AVIATION...98
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PITTSBURGH PA 441 AM EDT FRI AUG 23 2013 MDZ001-OHZ039>041-048>050-057>059-068-069-PAZ007>009-013>016-020>023- 029-031-073>076-WVZ001>004-012-021>023-041-240845- GARRETT-TUSCARAWAS-CARROLL-COLUMBIANA-COSHOCTON-HARRISON- JEFFERSON OH-MUSKINGUM-GUERNSEY-BELMONT-NOBLE-MONROE-MERCER-VENANGO- FOREST-LAWRENCE-BUTLER-CLARION-JEFFERSON PA-BEAVER-ALLEGHENY- ARMSTRONG-INDIANA-WASHINGTON-GREENE-WESTMORELAND-WESTMORELAND RIDGES- FAYETTE-FAYETTE RIDGES-HANCOCK-BROOKE-OHIO-MARSHALL-WETZEL-MARION- MONONGALIA-PRESTON-TUCKER- 441 AM EDT FRI AUG 23 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN MARYLAND...EAST CENTRAL OHIO...NORTHWEST PENNSYLVANIA...SOUTHWEST PENNSYLVANIA...WEST CENTRAL PENNSYLVANIA...NORTHERN WEST VIRGINIA AND NORTHERN PANHANDLE OF WEST VIRGINIA. .DAY ONE...TODAY AND TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
411 AM EDT FRI AUG 23 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0400 AM FLOOD 2 WNW ZANESVILLE 39.96N 82.05W
08/23/2013 MUSKINGUM OH 911 CALL CENTER
WATER OVER THE ROAD AT THE ENTRANCE OF WEST PIKE ONTO
I-70
0400 AM FLOOD 2 NW ZANESVILLE 39.97N 82.04W
08/23/2013 MUSKINGUM OH 911 CALL CENTER
WATER OVER THE ROAD AT DILLON FALLS RD AND KINGSVIEW DR
0400 AM FLOOD SOUTH ZANESVILLE 39.90N 82.02W
08/23/2013 MUSKINGUM OH 911 CALL CENTER
WATER COVERING RAILROAD TRACKS AT JUNE PKWY AND EAST
LASALLE ST
0400 AM FLOOD SOUTH ZANESVILLE 39.90N 82.02W
08/23/2013 MUSKINGUM OH 911 CALL CENTER
FLOODING REPORTED AT COOPERMILL RD AND POTTS LANE
&&
EVENT NUMBER PBZ1302678
EVENT NUMBER PBZ1302679
EVENT NUMBER PBZ1302680
EVENT NUMBER PBZ1302681
FRIESThe national radar mosaic for the moment the first event began.
9 flood. Local standard time, as filed.
State official reported flooding on Scenic Drive near Deems Park and Pike Run Road.
Emergency manager reported flooding along Ash street.
State official reported that Banning Road was closed due to high water.
State official reported that Breakneck Road was closed due to high water.
Emergency manager reported flooding on Locust Street.
Several roads were reported flooded in and around Stockade, including California Drive and Elco Hill Road.
State official reported that Rutan Road has at least three feet of water over roadway.
State official reported several roads closed due to flooding in Scottdale and Mount Pleasant.
Emergency manager reported that a female was rescued from her vehicle that was stranded in floodwater in Alverton. In addition, several basements were reported to be flooded in the town.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Pennsylvania in 2013Every state in 2013This day in weather historyWarnings in Pennsylvania, August 2013
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 475821, 475823, 475824, 475825, 475826, 475829, 475827, 475828, 475830.